A nurse in an emergency department is reviewing a client's ECG reading.
Which of the following findings should the nurse identify as an indication that the client has first-degree heart block?
Prolonged PR intervals.
Nondiscernible P waves.
More P waves than QRS complexes.
No correlation between P and QRS waves.
The Correct Answer is A
First-degree heart block is a type of atrioventricular (AV) block that involves the consistent prolongation of the PR interval (defined as >0.20 seconds) due to delayed conduction via the atrioventricular node.
This is seen on an ECG as a PR interval greater than 200 ms in length.
Choice B: Nondiscernible P waves are not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Choice C: More P waves than QRS complexes is not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Choice D: No correlation between P and QRS waves is not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The fluctuation of fluid in the water-seal chamber of a chest tube is known as tidaling and is caused by the changes in pressure within the chest during respiration.
Choice A is not correct because tidaling does not indicate an air leak.
Choice B is not correct because tidaling does not necessarily mean that the lung is fully re-expanded.
Choice D is not correct because suction pressure does not cause tidaling.
Correct Answer is B
Explanation
- A. "You should ask your provider about your plan." This response is appropriate because it acknowledges the client's desire to explore alternative treatments while directing them to the appropriate source for medical advice. It promotes client autonomy and ensures they receive accurate information from their healthcare provider.
- B. "Tell me what you know about chemotherapy." This response is also appropriate. It encourages the client to express their understanding and concerns about chemotherapy, allowing the nurse to identify any misconceptions and provide accurate information. This also opens the door for the client to express their concerns about vitamins and minerals, and why they want to persue that treatment.
- C. "I have never heard of any holistic treatment that is effective." This response is inappropriate because it dismisses the client's preferences and demonstrates a lack of respect for their autonomy. It also displays a lack of knowledge, as some holistic treatments can be used as supportive therapies.
- D. "The best way to treat your cancer is chemotherapy." This response is inappropriate because it is directive and does not allow the client to participate in decision-making. It also does not address the client's desire to explore alternative treatments.
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